Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Which is not the correct order for the stated property?
A
; atomic radius B
; first ionization enthalpy C
I; electron affinity D
; electronegativity
Text Solution
Verified by ExpertsThe correct answer is:
B
On moving along a period, ionization enthalpy increases. Thus, the order of ionization enthalpy should be as follow: 
.But N has half-filled subshell, therefore, it is more stable than O, thats why its ionization enthalpy is higher than O. Thus, the correct order of IE is 
.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The radii of the and are in the order:
Which of the following is not correct for iso-electronic ions?
Which of the following isoelectronic ions has lowest ionisation enthalpy?
The elements which occupy the peaks of ionisation enthalpy curve are
Which out of the following has the largest ionisation enthalpy?
Which of the process requires largest energy among them?